Tea Foam You May Have Overlooked
When brewing tea, the agitation of water creates foam on the surface, known as tea saponin. Many mistakenly consider it a impurity to be skimmed off, but this is a misunderstanding. Tea saponin is a complex glycoside compound with a bitter, pungent taste, insoluble in cold water, and slightly acidic...
Tea News · May 25, 2026
Is There a Relationship Between Tea Foam and Tea Quality?
When brewing tea, the foam that forms is primarily caused by substances like tea saponin, proteins, solid powders, and charcoal dust present in the tea leaves. Tea saponin, in particular, is a natural foaming agent. The amount of foam is not an indicator of tea quality. For instance, teas with fine...
Tea News · Jan 07, 2026
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